Earlier quoted context omitted.
Net neutrality is in regards to the internet carrier, not the browser (or client). The browser is irrelevant to net neutrality.
>The browser is irrelevant to net neutrality. // It's not the currently spoken of Net Neutrality, but it's relevant to the neutral carriage of data over the internet. If browser companies pick and choose whose data to delay (or otherwise alter) then they have the power to bias the web - Firefox could always delay scripts from other companies than Google, for example, in order to preference their business associate. T…
additionally, the reason net neutrality is so important is because there is no consumer choice in the ISP market for many users. Even when one browser is dominant, there's a lot more choice among browser vendors, so pushing out regulation to them is less important.
But let's not muddy the waters of net neutrality by injecting separate issues into the debate. Yes, browsers should treat all traffic equally, but that isn't net neutrality.